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Cheap flights from Knoxville to Portugal from $346

1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Knoxville to Portugal

Cheap round-trip flights

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Multiple Airlines Logo
7:00 am - 6:55 amTYS  Knoxville McGhee Tyson-LIS Lisbon Humberto Delgado
18h 55m2 stops Chicago O'Hare Intl Montreal Pierre Elliott Trudeau Intl
Multiple Airlines Logo
5:00 am - 7:17 pmLIS  Lisbon Humberto Delgado-TYS Knoxville McGhee Tyson
19h 17m2 stops Frankfurt am Main Washington, D.C. Dulles Intl
$721Multiple Airlines
Wed, Jan 6 - Wed, Jan 27
American Airlines Logo
12:42 pm - 9:05 amTYS  Knoxville McGhee Tyson-LIS Lisbon Humberto Delgado
15h 23m1 stop Philadelphia
American Airlines Logo
6:30 am - 8:43 pmLIS  Lisbon Humberto Delgado-TYS Knoxville McGhee Tyson
19h 13m2 stops Madrid Barajas Charlotte Douglas
$739American Airlines
Wed, Dec 2 - Tue, Dec 8
United Airlines Logo
8:30 am - 6:55 amTYS  Knoxville McGhee Tyson-LIS Lisbon Humberto Delgado
17h 25m3 stops Newark Washington, D.C. Reagan-National Montreal Pierre Elliott Trudeau Intl
United Airlines Logo
11:20 am - 8:54 pmLIS  Lisbon Humberto Delgado-TYS Knoxville McGhee Tyson
38h 34m2 stops Toronto Pearson Intl Newark
$740United Airlines
Wed, Jan 6 - Wed, Jan 27
Delta Logo
11:43 am - 11:25 amTYS  Knoxville McGhee Tyson-LIS Lisbon Humberto Delgado
18h 42m2 stops Detroit Metropolitan Wayne County Paris Charles de Gaulle
Delta Logo
11:30 am - 11:46 pmLIS  Lisbon Humberto Delgado-TYS Knoxville McGhee Tyson
17h 16m2 stops Amsterdam Schiphol Atlanta Hartsfield-Jackson
$740Delta
Sun, Dec 13 - Wed, Dec 23
Delta Logo
2:40 pm - 3:10 pmTYS  Knoxville McGhee Tyson-LIS Lisbon Humberto Delgado
19h 30m2 stops Atlanta Hartsfield-Jackson Paris Charles de Gaulle
Delta Logo
5:00 am - 9:28 pmLIS  Lisbon Humberto Delgado-TYS Knoxville McGhee Tyson
21h 28m2 stops Amsterdam Schiphol Detroit Metropolitan Wayne County
$740Delta
Wed, Dec 2 - Tue, Dec 8
British Airways Logo
2:19 pm - 7:40 amTYS  Knoxville McGhee Tyson-LIS Lisbon Humberto Delgado
12h 21m1 stop Philadelphia
British Airways Logo
11:05 am - 8:56 pmLIS  Lisbon Humberto Delgado-TYS Knoxville McGhee Tyson
14h 51m1 stop Philadelphia
$768British Airways
Wed, Jan 6 - Wed, Jan 27
British Airways Logo
7:50 am - 5:45 pmTYS  Knoxville McGhee Tyson-LIS Lisbon Humberto Delgado
28h 55m2 stops Philadelphia London Heathrow
British Airways Logo
11:05 am - 8:57 pmLIS  Lisbon Humberto Delgado-TYS Knoxville McGhee Tyson
14h 52m1 stop Philadelphia
$772British Airways
Sun, Dec 13 - Wed, Dec 23
British Airways Logo
12:42 pm - 9:05 amTYS  Knoxville McGhee Tyson-LIS Lisbon Humberto Delgado
15h 23m1 stop Philadelphia
British Airways Logo
11:05 am - 5:56 pmLIS  Lisbon Humberto Delgado-TYS Knoxville McGhee Tyson
11h 51m1 stop Philadelphia
$775British Airways
Sun, Dec 13 - Wed, Dec 23
United Airlines Logo
8:30 am - 8:10 amTYS  Knoxville McGhee Tyson-LIS Lisbon Humberto Delgado
18h 40m1 stop Newark
United Airlines Logo
10:55 am - 4:25 pmLIS  Lisbon Humberto Delgado-TYS Knoxville McGhee Tyson
34h 30m2 stops Montreal Pierre Elliott Trudeau Intl Newark
$782United Airlines
Fri, Jan 15 - Fri, Feb 5
United Airlines Logo
7:00 am - 9:20 amTYS  Knoxville McGhee Tyson-LIS Lisbon Humberto Delgado
21h 20m2 stops Chicago O'Hare Intl Montreal Pierre Elliott Trudeau Intl
United Airlines Logo
10:55 am - 8:54 pmLIS  Lisbon Humberto Delgado-TYS Knoxville McGhee Tyson
38h 59m2 stops Montreal Pierre Elliott Trudeau Intl Newark
$785United Airlines
Fri, Jan 15 - Fri, Feb 5

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Air Canada flights from Knoxville to Portugal

Our best Air Canada deals on Knoxville to Portugal flight tickets
Air Canada
Jan 30
TYS2:20 pmKnoxville McGhee Tyson
38h 00m
2 stops
LIS9:20 amLisbon Humberto Delgado
Feb 6
LIS11:20 amLisbon Humberto Delgado
32h 22m
2 stops
TYS2:42 pmKnoxville McGhee Tyson
$813
Air Canada
Jan 30
TYS2:20 pmKnoxville McGhee Tyson
38h 00m
2 stops
LIS9:20 amLisbon Humberto Delgado
Feb 6
LIS11:20 amLisbon Humberto Delgado
32h 22m
2 stops
TYS2:42 pmKnoxville McGhee Tyson
$814

United Airlines flights from Knoxville to Portugal

Our best United Airlines deals on Knoxville to Portugal flight tickets
United Airlines
Jan 15
TYS8:30 amKnoxville McGhee Tyson
18h 40m
1 stop
LIS8:10 amLisbon Humberto Delgado
Feb 5
LIS10:55 amLisbon Humberto Delgado
34h 30m
2 stops
TYS4:25 pmKnoxville McGhee Tyson
$782
United Airlines
Jan 15
TYS7:00 amKnoxville McGhee Tyson
21h 20m
2 stops
LIS9:20 amLisbon Humberto Delgado
Feb 5
LIS10:55 amLisbon Humberto Delgado
38h 59m
2 stops
TYS8:54 pmKnoxville McGhee Tyson
$785
United Airlines
Nov 8
TYS6:45 amKnoxville McGhee Tyson
22h 20m
2 stops
LIS10:05 amLisbon Humberto Delgado
Nov 15
LIS5:00 amLisbon Humberto Delgado
23h 59m
2 stops
TYS11:59 pmKnoxville McGhee Tyson
$789

momondo Fare Finder

 
Use the filters below to find and compare flights from Knoxville to Portugal that are best for you.

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Cheapest round-trip

KnoxvilleLisbon

TYS Knoxville McGhee Tyson - LIS Lisbon Humberto Delgado

TYSLIS

Knoxville McGhee Tyson

Wed 1/6

7:00 am-6:55 am

2 stops18h 55m

Lisbon Humberto Delgado

Wed 1/27

5:00 am-7:17 pm

2 stops19h 17m

$721

KnoxvilleLisbon

TYS Knoxville McGhee Tyson - LIS Lisbon Humberto Delgado

TYSLIS

Knoxville McGhee Tyson

Wed 12/2

12:42 pm-9:05 am

1 stop15h 23m

Lisbon Humberto Delgado

Tue 12/8

6:30 am-8:43 pm

2 stops19h 13m

$739

KnoxvilleLisbon

TYS Knoxville McGhee Tyson - LIS Lisbon Humberto Delgado

TYSLIS

Knoxville McGhee Tyson

Wed 1/6

8:30 am-6:55 am

3 stops17h 25m

Lisbon Humberto Delgado

Wed 1/27

11:20 am-8:54 pm

2 stops38h 34m

$740

KnoxvilleLisbon

TYS Knoxville McGhee Tyson - LIS Lisbon Humberto Delgado

TYSLIS

Knoxville McGhee Tyson

Sun 12/13

11:43 am-11:25 am

2 stops18h 42m

Lisbon Humberto Delgado

Wed 12/23

11:30 am-11:46 pm

2 stops17h 16m

$740

KnoxvilleLisbon

TYS Knoxville McGhee Tyson - LIS Lisbon Humberto Delgado

TYSLIS

Knoxville McGhee Tyson

Wed 12/2

2:40 pm-3:10 pm

2 stops19h 30m

Lisbon Humberto Delgado

Tue 12/8

5:00 am-9:28 pm

2 stops21h 28m

$740
Quickest round-trip

KnoxvilleLisbon

TYS Knoxville McGhee Tyson - LIS Lisbon Humberto Delgado

TYSLIS

Knoxville McGhee Tyson

Wed 1/6

2:19 pm-7:40 am

1 stop12h 21m

Lisbon Humberto Delgado

Wed 1/27

11:05 am-8:56 pm

1 stop14h 51m

$768

KnoxvilleLisbon

TYS Knoxville McGhee Tyson - LIS Lisbon Humberto Delgado

TYSLIS

Knoxville McGhee Tyson

Sun 12/13

7:50 am-5:45 pm

2 stops28h 55m

Lisbon Humberto Delgado

Wed 12/23

11:05 am-8:57 pm

1 stop14h 52m

$772

KnoxvilleLisbon

TYS Knoxville McGhee Tyson - LIS Lisbon Humberto Delgado

TYSLIS

Knoxville McGhee Tyson

Sun 12/13

12:42 pm-9:05 am

1 stop15h 23m

Lisbon Humberto Delgado

Wed 12/23

11:05 am-5:56 pm

1 stop11h 51m

$775

KnoxvilleLisbon

TYS Knoxville McGhee Tyson - LIS Lisbon Humberto Delgado

TYSLIS

Knoxville McGhee Tyson

Fri 1/15

8:30 am-8:10 am

1 stop18h 40m

Lisbon Humberto Delgado

Fri 2/5

10:55 am-4:25 pm

2 stops34h 30m

$782

KnoxvilleLisbon

TYS Knoxville McGhee Tyson - LIS Lisbon Humberto Delgado

TYSLIS

Knoxville McGhee Tyson

Fri 1/15

7:00 am-9:20 am

2 stops21h 20m

Lisbon Humberto Delgado

Fri 2/5

10:55 am-8:54 pm

2 stops38h 59m

$785

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Portugal from

How to get the cheapest flight ticket from Knoxville to Portugal

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Portugal?

The cheapest month to fly to Portugal from Knoxville is in January. Flight prices, which tend to average around $527, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of January, then book flights to Portugal from Knoxville during February instead. Flights to Portugal in February, while not as cheap as those in January, still average around $765.

Can stopping save me money on Knoxville to Portugal flights?

You could potentially save up to 57% on your flight if you consider stops on a Knoxville to Portugal flight.

Cheap Knoxville to Portugal flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Knoxville to Portugal

Best Price Found

$346

Fastest flight time

10h 00m

Direct flights

None
The best one-way flight to Portugal from Knoxville in the past 72 hours is $346. The best round-trip flight deal from Knoxville to Portugal found on momondo in the last 72 hours is $721.
The fastest flight from Knoxville to Portugal takes 10h 00m
There are no direct flights from Knoxville to Portugal. There are no popular flight routes from Knoxville to Portugal.
Search flight deals

Frequently asked questions about flying from Knoxville to Portugal

  • When did momondo last update prices for flights from Knoxville McGhee Tyson Airport to Portugal?

    Prices for flights from Knoxville McGhee Tyson Airport to Portugal were last updated today.

  • How many operators does momondo search for flights from Knoxville McGhee Tyson Airport to Portugal?

  • How old do you have to be to fly from Knoxville McGhee Tyson Airport to Portugal?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Knoxville McGhee Tyson Airport to Portugal.

  • What documentation or ID do you need to fly to Portugal?

    The travel and health documents required for your trip to Portugal can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Portugal. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Best airlines flying from Knoxville to Portugal

Compare and see reviews for airlines that fly from Knoxville to Portugal with momondo
Airline
Rating
Free Cancellation
Price
British AirwaysPriceFrom $475Free CancellationRating
6.7
8,188 reviews
Search British Airways flights
United AirlinesPriceFrom $629Free CancellationRating
7.4
10,121 reviews
Search United Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Knoxville to Portugal?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Knoxville to Portugal. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Knoxville to Portugal with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Knoxville to Portugal flights to just show those with flexible booking policies.

How can momondo help me find flights from Knoxville to Portugal?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Portugal from Knoxville.

I’m not ready to book a flight from Knoxville to Portugal right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Knoxville to Portugal flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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Find better results for your trip to Portugal

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